[ACT-R-users] ACT-R-users Digest, Vol 51, Issue 8

Wed Oct 21 22:08:54 EDT 2009

Let me try this again, Anderson does relate the Activation formula to a
Bayesian equation in *How does the human mind occur in the physical
universe?  *on pages 107 to 108 .  OK.  So, I can assume that DM is a form
of a Bayesian network.  I am looking right now to determine its relationship
to the basic Bayes theorem (as per Russell and Norvig, p 479):

P(b|a) = (P(a|b)P(b)) / P(a)

This may be just stupid probability theory math to some, but I would really
like to understand it. It's important to me.

Karri Peterson

On Wed, Oct 21, 2009 at 8:26 PM, Karri Peterson <karri.peterson at gmail.com>wrote:

> Hi,
>
> I am attempting to relate how close to Bayesian theory ACT-R is--I know
> that the Bayesian roots of ACT-R are referenced somehow by Anderson in *Rules
> of the Mind* --I am saying this in the context that I have seen *Rules of
> the Mind* referenced (I thought) in conjunction with a Bayesian version of
> ACT-R, but in truth  I am frustrated in that I can't get access to this book
> right now and I could really use it to clarify my understanding of this.
>
> Is DM (and / or Procedural memory) inherently Bayesian in nature?
> Can either be characterized in that manner or has it been morphed to an
> extent away from this?  The basis of my question is that I am unusure if the
> information is related in an acyclic fashion in all instances when it is put
> into the declarative memory.  This would seem to be a sticking point if it
> was.
>
> Dan, is there a definative answer to this anywhere?  Can you help?
>
> Karri Peterson
>
>
>
>
> On Wed, Oct 21, 2009 at 11:00 AM, <act-r-users-request at act-r.psy.cmu.edu>wrote:
>
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>> Today's Topics:
>>
>>   1. European ACT-R Spring School and Workshop (Niels Taatgen)
>>   2. Strict harvesting theoretical motivation (Stu @ AGS TechNet)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Wed, 21 Oct 2009 15:38:20 +0200
>> From: Niels Taatgen <n.a.taatgen at rug.nl>
>> Subject: [ACT-R-users] European ACT-R Spring School and Workshop
>> To: act-r-users at act-r.psy.cmu.edu
>> Message-ID: <1116C191-B1AA-4CF2-8C17-1C53654900DA at rug.nl>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> European ACT-R Spring School and Workshop
>> Organizers: Niels Taatgen and Hedderik van Rijn
>> University of Groningen, Netherlands
>> April 12-17, 2010
>>
>> ACT-R is a cognitive theory and simulation system for developing
>> cognitive models for tasks that vary from simple reaction time to
>> driving a car and learning algebra and air traffic control. In most
>> years, a summer school and workshop are organized at Carnegie Mellon
>> University for training and discussion of the theory. This year, there
>> will be a European version of these events in the Spring that we would
>> like to develop in a yearly event if there is sufficient interest.
>> There will be a four-day spring school, and a two-day workshop
>>
>> Spring School
>> The spring school will take place from Monday April 12 to Thursday
>> April 15. Participants have the choice between either following a
>> compressed four-day version of the traditional summer school
>> curriculum, or to carry out a project of their own with guidance from
>> experienced ACT-R modelers. The latter option assumes some prior ACT-R
>> experience, either through self study, or having followed an earlier
>> ACT-R summer school.
>> The standard curriculum is structured as a set of six units, of which
>> we will do four in the course of the week. Each unit lasts a day and
>> involving a morning theory lecture, an afternoon discussion session
>> and an assignment which participants are expected to complete during
>> the day. Computing facilities will be provided or attendees can bring
>> their own laptop on which the ACT-R software will be installed.
>>
>> To provide an optimal learning environment, admission is limited.
>> Prospective participants should submit by January 10 an application
>> consisting of a curriculum vitae, a statement of purpose, and, if
>> applicable, a description of the project they would like to do during
>> the spring school. Demonstrated experience with a modeling formalism
>> similar to ACT-R will strengthen the application, as well as general
>> programming experience. Applicants will be notified of admission by
>> January 20.
>>
>> European ACT-R Workshop
>> The European ACT-R workshop will take place from Friday April 16 to
>> Saturday April 17.  The workshop will feature research presentations,
>> discussion sessions and instructional tutorials. We still have to
>> determine the exact structure of the workshop, so suggestions for the
>> topics of the tutorials and discussion sessions are welcome. Admission
>> to the workshop is open to all.
>>
>> Registrations fees and housing
>> Spring School + Workshop: Euro 150
>> Workshop only: Euro 100
>> Late fee (registration after March 12): Euro 50
>>
>> Housing will be offered in the university guest house for
>> approximately Euro 60/day (single, double rooms are around Euro 75).
>>
>> Registration
>> To apply to the Spring School, send and email to Niels Taatgen (
>> niels at ai.rug.nl
>> ), and attach the requested documents, before January 10, 2010. If you
>> would like to contribute to the workshop, please let us know as well.
>> Further details on registering for the workshop will follow.
>> ===============================================
>> Niels Taatgen - Professor
>> University of Groningen, Artificial Intelligence
>> web: http://www.ai.rug.nl/~niels     email: niels at ai.rug.nl
>> Telephone: +31 50 3636435
>> ===============================================
>>
>>
>>
>>
>>
>> ===============================================
>> Niels Taatgen
>> University of Groningen, Artificial Intelligence
>> web: http://www.ai.rug.nl/~niels     email: niels at ai.rug.nl
>> Telephone: +31 50 3636435
>> ===============================================
>>
>>
>>
>>
>>
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>> Message: 2
>> Date: Wed, 21 Oct 2009 11:03:15 -0400
>> From: "Stu @ AGS TechNet" <stu at agstechnet.com>
>> Subject: [ACT-R-users] Strict harvesting theoretical motivation
>> To: act-r-users at act-r.psy.cmu.edu
>> Message-ID: <4ADF22B3.8030009 at agstechnet.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Can anyone point me to a reference that discusses the theoretical
>> underpinnings for strict harvesting (with respect to buffer clearing)?
>>
>> Thank you,
>> Stu
>>
>>
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>> End of ACT-R-users Digest, Vol 51, Issue 8
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